Jammed Doors and Sticking Windows

What does a jammed door or a sticking window mean?

Jammed doors and sticking windows are often the first indication of damaged foundations due to movement of foundation ground and soils under a home.

If you notice that your doors and/or windows are misaligned and are getting stuck, scraping against the frames or are jammed, you should investigate these causes immediately. The risk of doing nothing can be more costly down the track. Foundation damage does not fix itself so ignoring the problem can end up costing you more.

Teretek® Raises and Re-levels Home in Upper Hutt

Mainmark’s proprietary engineered resin injection solution, Teretek®, was used to fill the voids, stabilise the foundation soil, raise and re-level the slab, and re-align a sliding glass door.

Mainmark was required to raise, re-level, and resupport the home across 4 lineal metres. By injecting Teretek® engineered resin, Mainmark endeavoured to return the affected structure to as near as reasonably practical to level, which would also help to address the separation at the lintels on the external walls.

What causes a jammed door or a sticking window?

All structures regardless of age are susceptible to foundation damage, this occurs when soil underneath the building starts to move or settle – known as subsidence – and can no longer support the weight of the home. Subsidence under certain areas of a building can cause it to sink and misalign internal and external fixtures. To determine the best procedure to fix any settlement issues, the underlying problem must be identified.

Likely causes:

Soil erosion, often caused by water that is flowing beneath a building’s foundation resulting in voids and reduction of bearing capacity

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